Help - Neap 2012 MC answers

[ellaa81]

So I've just corrected my MC section of the 2012 Neap exam and I'm a bit confused with a couple of their answers...

First one is question 8, relating to the information provided:
"Jo and Kevin are two 19 year-olds who went on an end of year road trip that started in Melbourne and ended in Perth. During the road trip, Jo had no sleep for 72 hours, whereas Kevin managed approximately 4 hours sleep during each of the 3 days that they were travelling. Kevin's sleep was mainly in short bursts ranging from 10 minutes to an hour at a time.

When they arrived at Perth, both of them felt extremely fatigued and slept approximately 12 hours on the first night then approximately 10 hours the next night, before settling back into normal 8 hour sleep patterns."

Question 8
In terms of REM rebound, which of the following best describes their first night's sleep?
A. Both will have up to 8 hours of REM sleep.
B. Jo will have approximately 4 hours of REM sleep, whilst Kevin will have approximately 8 hours.
C. Both will have approximately 4 hours of REM sleep.
D. For the first 8 hours of their sleep, both will have their normal patterns of REM sleep and then have some additional REM sleep during an extra sleep cycle early in the morning (during their 12 hour sleep)

The answer is C. Can someone please explain why this is the case? I thought because 20% of sleep is normally REM, and 20% of 12 is 2.4 it couldn't be 4?

Also this question, which relates to the following information:
Leigh has suspected brain damage after falling unconscious while submerged in a backyard pool for five minutes before being rescued. One of the symptoms is difficulty processing both verbal and non-verbal sounds (for example, the sound of a doorbell or instrumental music).

Question 22
It is most likely that Leigh has suffered damage to her
A. left auditory cortex only
B. right auditory cortex only
C. auditory cortex on either or both sides
D. Wernicke's area

The answer is B. I answered C, because it explicitly says difficulty processing both verbal and non-verbal sounds? In my notes I have that verbal sounds are mainly in the left hemisphere and non-verbal sounds are mainly the right hemisphere?
Can someone please explain why it's only the right?

Thanks and hope everyones study is going well!

[ktrah]

The first one is because they're both experiencing REM rebound so they spend more time in REM than usual to compensate for the loss of REM in the previous nights. But I'm not sure about question 22. I would've thought it was C as well, so maybe it's a misprint?

[cnguyen599]

I have no idea about Q22 but I can attempt question 8.

From my notes a complete sleep cycle ranges from around 90 to 120 minutes, so more then 1 hour. Typically REM sleep only occurs for a few minutes near the end of a cycle at the beginning of the night and progressively gets longer. We may think that Kevin might have entered REM sleep, but 4 hours total of burst sleep does not give a person sufficient time to enter REM. Essentially the amount of REM sleep lost would be the same as Jo, therefore both will have the same time for REM rebound.

I think you might be overlooking this question with the calculations. Just have a think about it. It would be very unlikely for someone to experience 8 hours of constant REM sleep in their first night considering that they also require NREM sleep as well. This leaves only C as a valid option.

[HiddenUser]

For Q22*
If you read the Assessment Report for it. It says the right hemisphere does have a small role in terms of verbal functions, and it specifies non verbal tasks in the example. However I too answered it like you and believe the question was terribly worded.

[Limista]

Question 22:

I tackled this question using the following strategy:
Stage 1 NREM: 5-10min
Stage 2 NREM: 20min
Stage 3 NREM: 40min
Stage 4 NREM: 20min
REM: 10min
For Kevin - he slept for approx 60min max. This means that he would typically wake up in NREM stage 3. So for the entire 3 days, he wouldn't be getting any REM.
For Jo - the question states he gets no sleep at all, hence he gets no REM sleep either. 
Logically, therefore, they would both spend same amount of time in REM - this eliminates B.
Bear in mind that D is totally wrong - they should both experience REM rebound first night
Time to work out how much REM sleep they both have: 10min +15min + 20 + 25 + 30 (remembering that REM sleep increases as night progresses) = 100min REM per night. 100 x 3 = 300min = 5hr 10min REM needed for Jo and Kevin. Answer that is closest is option C.

Question 8:
Neap answers are wrong - you are right. The left primary auditory cortex has specialised areas for responding to verbal stimuli; the right for non-verbal stimuli. This specialisation is never exclusive - two cortices do overlap to register auditory info. Correct answer therefore C.

[pubsquash]

Did the same thing for question 22. Also, the way they worded the answer in the suggested solutions also kind indicated that the answer was C instead of B cause it said that the left side also plays a small role :S

Anyway for the first one, you're right about the 20% part, however, because they're sleep deprived, and therefore REM sleep deprived, they were gonna experience REM rebound which means that the amount of REM sleep experienced is twice more than usual

[aaackk]

slightly off topic, but does anyone else find Neap trial exams significantly harder than other company papers?

[Joseph41]

This, too, is somewhat unrelated to the primary topic, but has anybody else attempted the following Engage practice exam?

http://engageeducation.org.au/engagedownloads/Practice%20VCE%20Exams%202012/Psychology/Exam%20Solutions.pdf

If so, does anybody else disagree with several of their multiple choice answers? It's extremely frustrating (as I'm either very, very wrong or their solutions aren't really solutions!). 

[ellaa81]

slightly off topic, but does anyone else find Neap trial exams significantly harder than other company papers?

Absolutely.

And thanks for the clarification everyone

[ecvkcuf]

Joseph what answers are you disagreeing with? Because when I was marking mine some of them didn't seem right.

[Joseph41]

Joseph what answers are you disagreeing with? Because when I was marking mine some of them didn't seem right.

There were many. Questions 24, 32 (even the structure of the question is confusing in that it doesn't explicitly refer to anything) and 36 were particularly confusing.

[ktrah]

slightly off topic, but does anyone else find Neap trial exams significantly harder than other company papers?

Yep, I found Neap pretty difficult compared to the others. Good to know it's not just me!

[Strongzzz]

Joesef21, ive attempted engage and i agree with you, it is very tricky!
i recommend Insight 12, Neap 12 (however some MC and SA have wrong explanations light the sleep deprivation qn and the soccer/olympics qn) Most difficult for me. How many prac exams has everybody done? ive done 14 now zzzzz

[ecvkcuf]

4 Practice exams.. that's all I have. Plus the whole Checkpoints book (which contains questions from past study design relevant to current design).. unfortunately my school doesn't give out practice exams as our school lacks the resources. And I really don't have the money to buy practice exams individually. Hopefully I can do well with just my understanding of the course.

[brenden]

4 Practice exams.. that's all I have. Plus the whole Checkpoints book (which contains questions from past study design relevant to current design).. unfortunately my school doesn't give out practice exams as our school lacks the resources. And I really don't have the money to buy practice exams individually. Hopefully I can do well with just my understanding of the course.

4 exams? Get them from the VCAA site man! In previous study designs, for the unit 3 exams just ignore visual perception and I think there are memory questions in unit 4.
http://www.vcaa.vic.edu.au/vce/studies/psychology/exams.html
That's the website.
I think I'd be nearing 20 completed exams now.